Quantum Computing hardware in great extent to optimize algorithm performance of various domains of classical and high-performance computing. Optimization in any category of algorithm results in improved performance and new method suggestion for existing standards. Initially machine learning from classical to parallel computing have given very good platform for researcher's to optimize algorithm performance if data size will be huge and complex. Quantum mechanics such as superposition and entanglement will make quantum computing more successful over classical standard. Quantum Computers operates on quantum superposition and entanglement mechanism of quantum physics. Quantum machine learning integrates machine learning and quantum computing together for exponential speedup. Classical machines are enables to perform several tasks because of computational complexity and operational ability of hardware. Quantum computing definitely justice the operational ability for complex task and pattern formation. Quantum machine learning will optimize existing machine learning methods based upon performance outcome of algorithm. This paper discussed optimization of supervised machine learning using variational quantum circuits. Discussion extended to various methods and subroutines to justify classifier's performance for big data processing on quantum hardware.